Sleigh-knee.



ER 32 253 I PATENTED MAR. 8, 1904.

P. s. LOGKWOOD. SLEIGH KNEE APPLICATION FILED JULY 8. 1903.

no team.

m. LAND VEHICLES.

I UNITED STATES Patented March 8, 1904:.

. PERKINS sfLooKwooD, or MAijaIb, NEW YORK.

SLEIGH -KNEE.

sr'nc mrcn rioiv forming part of Letters Patent ivb. 754,225, dated March 8, 1904. Application filed Ju1y8,1903. stature. 164,631.= (nas ier).

Tan/ll whom it concern Be it known that I, PERKINS S.'LOCKWOOD,

of Madrid, in the county of St. Lawrence, in T the State :of New York, have invented'new and useful Improvements in Sleigh-Knees, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description. 7

This invention relates to improvements in sleigh-knees, the object ofwhich is to produce a metal knee which is of peculiar form and construction to resist the strains to which it is subjected when in operative position in single pieceand to enlarge or elongateits op- -cured to the knee.

posite ends in directions at right angles to each other and to provide the lower and upper faces of the elongated portions with open lengthwise channels, the lower one being adapted to'receive the runner, and the upper one is arranged to receive one of the cross bars or beams of the sleigh-frame.

Further objects will appear in the subsequent description. v

In the drawings, Figures 1 and 2 are respectively face view and side elevation of my improved knee, showing the adjacent portions of one of the runners and one of the cross bars or beams which are connected by and se- Fig. 3 is a perspective view of the detached knee. Figs.'4, 5, and 6 are sectional views taken, respectively, on lines 4 4, Fig. 1, 5 5 and 6 6, Fig. 2, showing particularly the manner of securing the beam and runner to the knee and also the cross-sectional form of the'knee.

Similar reference characters indicate corresponding parts in all the views.

As seen in the drawings, this knee consists of a slender body portion 1, having its lower end elongated longitudinally at 2 and provided with a channel or recess 3 in its lower face for receiving a runner '4, while the upperend of the knee is elongated transversely at 5 or at substantiallyright angles to the elonor lengthwise channel 6 for receiving a cross bar or beam 7. r 4 As seen in Fig. 1, which may represent, either-a front-or rear viewof one of the knees,

the knee-curvesupwardly-and inwardly from I widening being in the direction of extension of said portion 5, or rather in the direction of the channel 6. The opposite ends of theair.

elongated portion 5 extend some distance at v either side of the portion 8 and are provided with apertures for receiving clamping bolts 9, which are passed through similar apertures in the beam 7 but the upper ends of the-bolts are usually depressed beneath the upper suri v -.faceof the beam, which is counterbored for 7 i ceiving clamping-bolts 12, which are "also.

passed through similar apertures in the run- 5' ner 4, the lower ends of the bolts being countersunkwithin the lower face of the runner;

It is thus seen' that the upper end of the knee lies within the vertical plane of the lower end for the purpose of bracing the frame against lateral strains, and it will be noticed that the upper elongated portion 5 is considerably longer than the lower elongated portion which receives the runner, the object of this being toextend the support as far under the superimposed load as may be practicable, so that Fig. 2 that the knee inclines longitudinally from a vertical position, so that its upper end,

lies in a plane at one side ofits lower end, and 1 9 that the intermediate portion appears substantially -straight when viewed in side elevation,"; as seen in Fig. 2, the lower end presenting the appearance of a shoe or foot which rests upon the upper face of a runner 4, and owing to the fact that the runner is seated in the longitudinalchannel 3 the tortional strain upon 2 k/IMsgees the runner is somewhat relieved by the flanges, -as 14. This same statementmayapply to' the upper end, which forms a chairor seat for receiving the rail or beam 7 and is provided 5 with upwardly-projecting flanges 15, which engage the sides of the beam and aflords resistance to tortional'or' twisting strains upon the beam.

One of the objects not previously stated of l I this construction of knee is to produceone which is slenderand neat in appearance and yet possesses the advantages of strength and durability, and in order to bring about this result it is preferably constructed substantially I5 T-shaped in cross-section, as seen in Fig. 6,

Y in which the central longitudinal portion is r reduced in thickness, while its opposite longitudinal inner and outer edges are somewhat increased in thickness, so as to form reinforc- 2 ing lengthwise ribs, extending from the lower elongated end 2 to the upper elongated portion'5; but the width across the inner face, as

' 16., is greater than the width across the outer face, as 17, the object of this being to afiord 5 greater rigidity at the inner face or nearest the center of the load when the knees are assembled in the frame.

' said enlarged upper -end-,'substantially -as=' del The function and construction of "my improved knee will now be readily understood upon reference to the-foregoing description 3 and the accompanying drawings.

Having thus described my invention, wha Iclaim, and desire to secure by Letters Pat-. ent is a knee-for sleighsformed from a single 35 piece of metal channeled on its sides, the lower end thereof being enlarged and extending on either side beyond the knee-body, flanges formed integral with the termination of said enlargedend, and 'extendingbelowg the ex- 4o tremities of said enlarged 'endfs'ziid'enlarged end-lying in .a plane transverse to the plane of the knee-body, the upper end or: the kneebody being enlarged and extending in aplane transverse to the 1ow'erend,-'-thesaid enlarged 45 upper endbeing seeuredto said 'kneefibody "at a-point' to oneside of the "center thereofwand upwardlytprojecting 1 flanges barriedaby the scribed.

In witness whereofI have' hereunto set my hand this23d'dayof J une, r1903. v 1

'PERKINS S. ISOGKWOQD. -Witnesses: 1

AJAMES 'W."Arrc nrso1v,

WM H;-EAST QN. 

